US2791019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold
Assignee: Individual
•
Filing: 1954-03-01
•
Granted: 1957-05-07
•
Expires: 1974-03-01
Abstract
No abstract record available.
Inventors
- 👤 Laney Lucius B Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:01
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/70; B28B21/74; F; F16; F16L; F16L1/00; F16L1/12; F16L1/20; F16L1/24; Y; Y10; Y10T; Y10T403/00; Y10T403/57; Y10T403/5761; Y10T403/5766; Y10T403/5781; Y10T403/5786
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US925009A
Cited
US1036867A
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US1138454A
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US1227824A
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US1292010A
Cited
US1486414A
Cited
US2180422A
Cited
US2163261A
Cited
US2453804A
Cited
US2518981A
Cited
US2662552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |